Question

A rock is thrown from the edge of a cliff to the ground 19.5 m below....

A rock is thrown from the edge of a cliff to the ground 19.5 m below. The rock has an initial velocity of 18.5 m/s, directed 15.0° above the horizontal.

I answered a and b but need help on C.

(a) How long does it take the rock to reach the ground?

2.5 s
(b) How far from the base of the cliff does the rock strike the ground?

44.8 m

(c) Find the velocity of the rock just before it strikes the ground.

magnitude
direction _________ below the horizontal

Homework Answers

Answer #1

magnitude of velocity is =26.6 m/s

direction is = 46.8039 degrees below the horizontal.

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